Typewriter



W. KAHLE Jam-12 1926.

TYPEWRITER Filed July 18, 1924 Patented Jan. 12, 1926.

UNITED STATES PATENT OFFICE.

WALTER KAHLE, OF ERFURT, GERMANY, ASSIGNOR TO A E G DEUTSCHE WERKE .AKTIEN-GESELLSCHAFT, OF BERLIN, GERMANY.

TYPEWRITER.

Application filed July 18, 1924. Serial No. 726,765.

To all whom it/r/m-y concern.

Be it known that I, VVALTER KA'umi, a citizen of Germany, residing at Erfurt, Germany, have invented certain new and useful In'iprovcments in Typewriters, of which the 4 following is a specification.

My invention relates to typewriters and more especially to that class of typewriters in which the paper carriage is Wider than in typewriters of the usual type, the object being to permit the use of extra wide sheets. As suchmachines are required only in exceptional cases and therefore do not pay in view of their high initial cost, it has been proposed to provldethe main frame of normal width with an exchangeable upper part which can be exchanged for a W1 er part adapted to support a wider carriage.

This solution, however, is not satisfactory as it necessitates a specially constructed main frame.

It is an object of my invention toprovide a typewriter of the class described with means for writing extra long lines notwithstanding the fact that its main frame is of normal width. To this end I provide the machine with an auxiliary frame for extending the normal carriage guides which may be screwed or secured to the normal main frame by snap bolts or any other suitable means. The auxiliary frame is preferably designed to form a self-contained unit comprising a track for the roll of the wide carriage and two lateral extensions of the carriage raili In the drawings affixed to this specification and forming part thereof a device embodying my invention is illustrated diagrammatically by way of example. In the drawings Fig. 1 is plan view of my auxiliary frame.

Fig. 2 is a diagrammatic plan View of the main frame showing the auxiliary frame in position thereon in dotted lines,

Fig. 3 is an end-elevation'of the main frame and fittings, partly in section on the line AB in Fig. 2.

Referring to the drawings, the auxiliary frame comprises a track I) for guiding the roll a of the long carriage a and two extension rails c, c. As will be seen in Fig. 2, the normal rail (Z of the main frame 9 fits exactly between the two auxiliary rails 0, 0', so that a continuous rail is formed when the extension rails a, c. are in position on which the wider carriage may be placed. The auxiliary frame is provlded with lugs f, f supporting set screws c, e at both sides and a set screw 0' at the rear by which it may be secured to the mam frame 9 of the machine and dowel pins i, 71' formed on/ lugs h, h and adapted to fit into holes j, j in the main frame. By these means the auxiliary frame 1s secured to the main frame and its extenslon rails c, 0 are properly connected with the fixed rail d.

' The auxiliary frame comprising the track and auxiliary shift rails may be divided instead of being made in one, as shown. In this case, each part supports one of the extension rails and one half of the track. The two parts are securedto the frame of the machine and the track and rail form a complete unit. Such and other combinations and modifications may be made without departing from the spirit of my invention.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

I claim l. A typewriter comprising a main track to support the carriage and. lateral extensions adapted to be temporarily secured to the end of said track so as to form a continuation thereof.

2. A typewriter comprising a main frame, a rear track and a front guiderail forming part of said frame and an auxiliary. frame adapted to be temporarily secured to the machine and forming a lateral extension of both said rear track and said front guide rail.

3. A typewriter comprising a'main frame, a rear track and a front guide rail forming part of said frame and a substantially U- shaped auxiliary frame adapted to be temporarily securedto the machine and forming a lateral extension of both said rear track front rail forming part of said frame, an

support, front extension rails secured to the auxiliary frame adapted to be temporarily ends of said track rail in parallel therewith secured to said main frame so as to form a and means for removably fixing said extenlateral extension of both said rear track and 1 sion track to the typewriter frame. front rail and means for removably fixing 6. A typewriter comprising a main frame said auxiliary frame to said front rail. to support the carriage, a rear track and a' In testimony whereof I afiix my si ature.

. WALTER KAE HE 

